Image:
Title:
Assoc. Prof. Dr.
Surname:
ERGİN GÜRCAN
Status:
Title:
Assoc. Prof. Dr.
Telephone:
2975
Email:
eyulun
Educational Background:
- B.S, M.S; METU; Ph.D., Humboldt University of Berlin
Image:
Title:
Instr. Dr.
Surname:
Okaygün
Status:
Title:
Instr. Dr.
Email:
okaygun
Educational Background:
- B.S., University Of Petroleum; M.S. UTexas A & M University, Texas, USA, Ph.D., A & M University, Texas, USA
Image:
Title:
Assoc. Prof. Dr.
Surname:
EKİNCİ
Status:
Title:
Assoc. Prof. Dr.
Telephone:
+90 392 661 2925
Email:
ekincia@metu.edu.tr
Room:
R-207
Web Address:
Educational Background:
- B.S., M.S., Coventry Univeristy; Ph.D., University Collage, London
Research Interests:
- Starting with my PhD studies, I have shaped my research track in the areas of Critical State Soil Mechanics, ground improvement, and monitoring, and I have tried to establish interconnects between all three areas of research. My main research area was Critical State Soil Mechanics, where I worked on investigating the mechanical behaviour of reconstituted, reinforced, and unreinforced peds and clays in the context of the Critical State framework. Further, I investigated the effects of newly proposed specimen preparation methods and their relationship with the discontinuities found in stiff fissured clay. Within the same framework, during my studies at UCL, I was a part of a research group that studied the behaviour of a well-graded granular soil (used as the base and sub-base for roads) by performing triaxial tests on cemented and uncemented samples. Recently , I researched the influence of the initial void ratio on the Critical State behaviour of poorly graded fine sands in Cyprus.
- The second field of research I have worked on, which evolved alongside my work on Critical State soil mechanics, is stabilised marine deposited clays. I assessed the performance of marine clay treated with a binder that incorporates Portland cement, hydrated lime, and copper slag. Further, in a parallel study, I studied the strength and microstructural properties of marine clay-cement mixes. For this study, I used two extreme preparation methods to understand which sample preparation technique better mimics the in-situ behaviour of marine clay-cement mixes, and I used the results to propose a solution that is both environment friendly and cost effective. Further, a recent study tested the implementation of the proposed method I developed on site, and a new publication is in production.
- The third area of my research is on the use of close-range photogrammetry to quantify deformations on geotechnical assets. I have worked on the development of guidelines to use aerial photogrammetry tools for determining small displacements on geotechnical structures. In numerous cases, conventional surveying tools have been used to confirm deformations that were observed based on the guidelines. Further, the same techniques have been adapted in laboratories to calculate volumetric shrinkages of marine clays that have been stabilised with additives.
Courses Taught:
- Soil Mechanics
- Foundation Engineering
- Computer Aided Engineering Drawing
- Soil Improvement Techniques
- Designing with Geosynthetics
- Computer-aided Geotechnical Analysis
Selected Publications:
- Journal Papers;
- Rezaeian, M., Ferreira, P. M. V., Ekinci, A. (2019). Mechanical behaviour of a compacted well-graded granular material with and without cement. Soils and Foundations 59(3): 687-698.
- Ekinci, A., Consoli, N., Filho, H. C. S. (2019). Copper Slag-Hydrated Lime-Portland Cement Stabilized Marine Deposited Clay. Proceedings of the Institution of Civil Engineers - Ground Improvement Journal, 0(0): 0.
- Ekinci, A. (2019). Effect of preparation methods on strength and microstructural properties of cemented marine clay. Construction & Building Materials, 227(116690)
- Ekinci, A., Ince, C., Ferreira, P. M. V. (2019). An Experimental Study on Compression and Shrinkage Behavior of Cement Treated Marine Deposit Clays. International Journal of Geosynthetics and Ground Engineering, 5(3).
- Ince, C., Derogar, S., Ball, R.J., Ekinci, A., and Yuzer, N. (2019). Long-term mechanical properties of cellulose fibre-reinforced cement mortar with diatomite. Advances in Cement Research, 31(8): 343-352.
- International Conferences;
- Ekinci, A., Hanafi, M., & Ferreira, P. M. V. (2018) Effect of sand paper grading on the shear behaviour of fine-grained sand. Proceedings of the 11th International Conference on Geosynthetics, Seoul, Korea
- Ekinci, A., Bazarbek, Y. (2018) Evaluating Shrinkage Behaviour of Stabilised Cyprus/Kythrea Group Clays Using Close-Range Photogrammetry and Free Shrinkage, Proceedings of the 26th European Young Geotechnical Engineers Conference, Graz, Austria
- Ekinci, A. & Burak, M. K. (2017) Mechanical properties of stone and sand paper reinforced Cyprus clay, Proceedings of the 7th International Symposium on Geotechnical Engineering, İstanbul, Turkey.
- Ekinci, A. & Ferreira, P. M. V. (2012) Effects of fibre reinforcement in the shrinkage behavior of compacted clay, Proceedings of the3rd International Conference on New Developments in Soil Mechanics and Geotechnical Engineering, Nicosia, Cyprus.
- Ekinci, A. & Ferreira, P. M. V. (2012) Effects of fibre inclusion on stress strain behaviour of a compacted over-consolidated clay from Lambeth Group, Proceedings of the International Conference on Ground Improvement and Ground Control, Wollongong, Australia.
Image:
Title:
Dr.
Surname:
SUN
Status:
Title:
Dr.
Telephone:
0 392 661 2188
Email:
edasun@metu.edu.tr
Educational Background:
- B. Sc. Hacettepe University; M.S., PhD., METU.
Research Interests:
- perfectionism, conflict styles, college adjustment, mental health prevention programs, qualitative research methods
Courses Taught:
- Theories of Counseling
- Psychology of Adolescence
- Counseling Practicum
- Guidance
- Developing Skills for Peer Guidance
- First Year on Campus Seminar"
Selected Publications:
- Koydemir, S., Sun-Selisik, Z. E., & Tezer, E. (2008). Conflict behaviors and marital adjustment in Turkish couples. Family Therapy: The Journal of the California Graduate School of Family Psychology, 35, 3, 133-142.
- Koydemir, S., Sun-Selışık, Z. E., & Tezer, E. (2005).The relationship between marital adjustment among couples and perfectionism level of spouses. The Psychological Counseling and Guidance Journal of Turkey, 23, 65-71."
Image:
Title:
Prof. Dr.
Surname:
EVER
Status:
Title:
Prof. Dr.
Telephone:
+90392 661 2961
Email:
eever@metu.edu.tr
Room:
S-133
Educational Background:
- B.S., Eastern Mediterranean University; M.S., Ph.D., Middlesex University
Research Interests:
- Computer Networks
- Development of performability models for wireless communication systems
- Performance, Availability / Reliability and Performability modelling
- Sensor Networks
- Internet of Things
- Cloud Computing
- Safety Warning and Emergency Rescuing Systems for Disaster Control and Management
- Vehicular Ad-Hoc Network (VANET)
Courses Taught:
- CNG 492 Senior Project and Seminar: Implementation
- CNG 491 Senior Project and Seminar: Design
- CNG 435 Computer Networks
- CNG 242 Programming Language Concepts
- CNG 223- Discrete Computational Structures
- Network Design, Modelling and Simulation
- Fundamentals of Computing
- Computer Networks: Wireless and mobile communications
- Network Modelling and Simulation (M. Sc.)
Selected Publications:
- Kizilkaya, Burak, Enver Ever, Hakan Yekta Yatbaz, and Adnan Yazici. "An Effective Forest Fire Detection Framework Using Heterogeneous Wireless Multimedia Sensor Networks." ACM Transactions on Multimedia Computing, Communications, and Applications (TOMM) 18, no. 2 (2022): 1-21.
- Yatbaz, H., Y., E. Ever, and A. Yazici, (2021), "Activity Recognition and Anomaly Detection in E-Health Applications Using Color-Coded Representation and Lightweight CNN Architectures." IEEE Sensors Journal
- Qadir, Z., E. Ever, C. Batunlu, (2021) "Use of Neural Network Based Prediction Algorithms for Powering Up Smart Portable Accessories". Neural Process Lett. https://doi.org/10.1007/s11063-020-10397-3
- Yaqoob, M., O. Gemikonakli, and E. Ever, (2021), "Modelling heterogeneous future wireless cellular networks: An analytical study for interaction of 5G femtocells and macro-cells." Future Generation Computer Systems 114: 82-95.
- E., Ever, E., Gemikonakli, H.X., Nguyen, F., Al-Turjman, and A., Yazici, (2020). “Performance evaluation of hybrid disaster recovery framework with D2D communications”. Computer Communications.
- K., Doddapaneni, and E., Ever, (2020). "A survey study on MAC and routing protocols to facilitate energy efficient and effective UAV-based communication systems." In Drones in Smart-Cities, pp. 57-77. Elsevier.
- E. Ever, P. Shah, L. Mostarda, F. Omondi, and O. Gemikonakli, (2019), "On the performance, availability and energy consumption modelling of clustered IoT systems." Computing: 1-36.
- Ever, Enver, (2019), "Performability Analysis Methods for Clustered WSNs as Enabling Technology for IoT." In Performability in Internet of Things, pp. 1-19. Springer, Cham.
- F. Al-Turjman, E. Ever, Y. B. Zikria, S. W. Kim, and A. Elmahgoubi, (2019), SAHCI: Scheduling Approach for Heterogeneous Content-centric IoT Applications." IEEE Access.
- H. Y. Yatbaz, S. Eraslan, Y. Yesilada and E. Ever (2019), "Activity Recognition Using Binary Sensors for Elderly People Living Alone: Scanpath Trend Analysis Approach," in IEEE Sensors Journal. doi: 10.1109/JSEN.2019.
- Ebadinezhad, Sahar, Ziya Dereboylu, and Enver Ever, (2019), "Clustering-Based Modified Ant Colony Optimizer for Internet of Vehicles (CACOIOV)." Sustainability 11, no. 9: 2624.
- Kizilkaya, B., Caglar, M., Al-Turjman, F. and Ever, E. (2019) "Binary search tree based hierarchical placement algorithm for IoT based smart parking applications." Internet of Things 5: 71-83.
- Al-Turjman, F., Mostarda, L. Ever E., Darwish A., and Khalil, N. S, (2019), "Network Experience Scheduling and Routing Approach For Big Data Transmission in the Internet of Things." IEEE Access.
- Al-Turjman, F., Ever E., and Zahmatkesh, H., (2018) "Small Cells in the Forthcoming 5G/IoT: Traffic Modelling and Deployment Overview." IEEE Communications Surveys & Tutorials.
- Malavolta, I., Mostarda, L., Muccini, H., Ever, E., Doddapaneni, K., Gemikonakli, O., (2018), Software & Systems Modeling. (the journal is in SCI Expanded), (2018), ISSN:1619-1366, DOI: 10.1007/s10270-018-0687-0
- Deebak B.D., Ever E., Al-Turjman F., (2018) “Analyzing enhanced real-time uplink scheduling algorithm in 3GPP LTE-advanced networks using multimedia systems”. Trans Emerging Tel Tech. (the journal is in SCI Expanded), 2018. ISSN: 2161-3915. DOI: 10.1002/ett.3443.
- Poncha, L. J., S. Abdelhamid, S. Alturjman, E. Ever, and F. Al-Turjman. (2018). "5G in a Convergent Internet of Things Era: An Overview." In 2018 IEEE International Conference on Communications Workshops (ICC Workshops). IEEE, 2018.
- Kizilkaya, Burak, Mehmet Caglar, Fadi Al-Turjman, and Enver Ever. (2018). "An Intelligent Car Park Management System: Hierarchical Placement Algorithm Based on Nearest Location." In 2018 32nd International Conference on Advanced Information Networking and Applications Workshops (WAINA). IEEE, 2018.
- Alchihabi A., Dervis A., Ever E., Al-Turjman F., (2018) “A generic framework for optimizing performance metrics by tuning parameters of clustering protocols in WSNs”. Wireless Networks, 2018. ISSN: 1022-0038. DOI: 10.1007/s11276-018-1665-8.
- Doddapaneni, K., Tasiran, A., C., Ever, E., Omondi, F., A., Shah, P., Mostarda, L., Gemikonakli, O. (2018). “Does the Assumption of Exponential Arrival Distributions in Wireless Sensor Networks Hold?” International Journal of Sensor Networks, Volume 26, Issue 2, ISSN: 1748-1279, pp: 81-100. doi: 10.1504/IJSNET.2016.10001413.
- Al-Turjman F., Ever E., and Zahmatkesh H., (2017) “Green Femtocells in the IoT Era: Traffic Modeling and Challenges -- An Overview”, IEEE Network, Volume 31, Issue 6, ISSN: 0890-8044, pp: 48-55. DOI: 10.1109/mnet.2017.1700062.
- Ever E., Al-Turjman F., Zahmatkesh H., and Riza M., (2017) “Modelling Green HetNets in Presence of Failures for Dynamic Large-Scale Applications: A Case-study for Fault Tolerant Femtocells in Smart cities”, Elsevier Computer Networks Journal, 2017. DOI: 10.1016/j.comnet.2017.03.016.
- Al-Turjman, F., Ever, Y. K., Ever, E., Nguyen, H. X., & David, D. B. (2017), "Seamless Key Agreement Framework for Mobile-Sink in IoT Based Cloud-Centric Secured Public Safety Sensor Networks." IEEE Access 5 (2017): 24617-24631.
- Chu, Z., T. A. Le, H. X. Nguyen, M. Karamanoglu, Z. Zhu, A. Nallanathan, E. Ever, A. Yazici. “Robust Design for MISO SWIPT System with Artificial Noise and Cooperative Jamming." in Proceedings of, IEEE IEEE Global Communications Conference, GLOBECOM 2017, Singapore, pp. 1-6. IEEE, 2017.
- Chu, Z., Nguyen, H. X., Le, T. A., Karamanoglu, M., Ever, E., & Yazici, A. (2017). Secure Wireless Powered and Cooperative Jamming D2D Communications. IEEE Transactions on Green Communications and Networking.
- Ever, E. (2016). "Performability analysis of cloud computing centers with large numbers of servers." The Journal of Supercomputing, published online 24/10/16, ISSN: 0920-8542. pp:1-27. doi:10.1007/s11227-016-1906-5.
- Gemikonakli, E., Ever, E., Mapp, G., and Gemikonakli, O. (2016). “Admission control and buffer management of wireless communication systems with mobile stations and integrated voice and data services" Telecommunication Systems, published online, ISSN: 1572-9451. pp:1-13. doi: 10.1007/s11235-016-0259-y.
- Kirsal, Y., Ever, E., Kocyigit, A., Gemikonakli, O., and Mapp, G. (2015). “Modelling and analysis of vertical handover in highly mobile environments”. The Journal of Supercomputing, Volume 71, Issue 12, ISSN: 0920-8542, pp: 4352-4380.
- Ever, E. "Fault-Tolerant Two-Stage Open Queuing Systems With Server Failures at Both Stages." IEEE Communications Letters 18.9 (2014): 1523-1526.
- E. Ever, O. Gemikonakli, A. Koçyigit, E. Gemikonakli: A hybrid approach to minimize state space explosion problem for the solution of two stage tandem queues. J. Network and Computer Applications 36(2): 908-926 (2013).
- Ever, E., Gemikonakli, O. and Chakka, R., (2009),“Analytical Modelling and Simulation of Small Scale, Typical and Highly Available Beowulf Clusters with Breakdowns and Repairs”. Journal of Simulation Modelling Practice and Theory, Volume 17, Issue 2, ISSN:1569-190X. pp. 327-347.
- Gemikonakli, O., Ever, E. and Kocyigit, A., (2009), “Approximate Solution for Two Stage Open Networks with Markov-modulated Queues Minimizing the State Space Explosion Problem”. Journal of Computational and Applied Mathematics, Volume 223, Issue 1, ISSN: 0377-0427. pp: 519-533.
- C. Zheng, H. X. Nguyen, T. A. Le, M. Karamanoglu, D. To, E. Ever, F. Al-Turjman, and A. Yazici. "D2D cooperative communications for disaster management." in Proceedings of, IEEE 24th International Conference on Telecommunications (ICT), Limassol, Cyprus, pp. 1-5. IEEE, 2017.
- A. Kamran, H. X. Nguyen, P. Shah, Q. T. Vien, and E. Ever. "D2D multi-hop relaying services towards disaster communication system." in Proceedings of, IEEE 24th International Conference on Telecommunications (ICT), Limassol, Cyprus, pp. 1-5. IEEE, 2017.
- C. Zheng, H. X. Nguyen, T. A. Le, M. Karamanoglu, D. To, E. Ever, F. Al-Turjman, and A. Yazici. "Game theory based secure wireless powered D2D communications with cooperative jamming." in Proceedings of, IEEE Wireless Days 2017, Porto, Porteguese, pp. 95-98. IEEE, 2017.
- F. Al-Turjman, E. Ever, S. Alturjman, “Identification Framework for Smart Environments in the Era of Cloud-IoT”, In Proc. of the Inter. Conf. on Internet of Things, Data and Cloud Computing (ICC), University of Cambridge, United Kingdom, 2017.
- F. Al-Turjman, A. Betin-Can, E. Ever, S. Alturjman, (2016), “Ubiquitous Cloud-based Monitoring via a Mobile App in Smartphones: An Overview”, IEEE International Conference on Smart Cloud, New York, USA, November 18-20,pp.1-6, 2016.
- F. A. Omondi, E. Ever, P. Shah, O. Gemikonakli: Modelling Wireless Sensor Networks for Performability Evaluation. In Ad-hoc, Mobile, and Wireless Network, pp. 172-184. Springer Berlin Heidelberg, 2013.
- Gemikonakli, E., Mapp, G., Gemikonakli, O., and Ever, E., (2013), “Exploring Service and Buffer Management Issues to Provide Integrated Voice and Data Services in Single and Multi Channel Wireless Networks", in Proceedings of, The 27th IEEE International Conference on Advanced Information Networking and Applications (AINA-2013), Barcelona, Spain, 25 - 28 March, 2013. ISBN: 978-1-4673-5550-6.
- Doddapaneni, K., Ever, E., Gemikonakli, O., Mostarda, L., and Navarra, A., (2012), ''Effects of IDSs on the WSNs Lifetime: Evidence for the need of new approaches'', Third International Symposium on Mobile and Wireless Network Security (MWNS-12), In conjunction with 11th IEEE International Conference on Trust, Security and Privacy in Computing and Communications (IEEE TrustCom-12). Liverpool, UK, 25-27 June, 2012. ISBN: 978-1-4673-2172-3.
- E. Ever, R. Luchmun, L. Mostarda, A. Navarra, P. Shah: UHEED - An Unequal Clustering Algorithm for Wireless Sensor Networks. SENSORNETS 2012: 185-193.
- Taherkhani, S., Ever, E., Gemikonakli, O., (2010), “Implementation of Non-Pipelined and Pipelined Data Encryption Standard (DES) Using Xilinx Virtex-6 FPGA Technology”, in IEEE Proceedings of, 10th IEEE International Conference on Computer and Information Technology (CIT 2010). Bradford, 29 June- 1 July. ISBN:978-0-7695-4108-2.
- Ever, E., Kirsal, Y., Gemikonakli O., (2009), “Performability Modelling of Handoff in Wireless Cellular Networks and the Exact Solution of System Models with Service Rates Dependent on Numbers of Originating and Handoff Calls”, in IEEE Proceedings of CSSim2009: International Conference on Computational Intelligence, Modelling and Simulation, Czech Republic, 7-9 September. ISBN:978-0-7695-3795-5.
- Kara-Zaitri, C., Ever, E., (2009), “A Hardware Accelerated Semi Analytic Approach for Fault Trees with Repairable Components”, in IEEE Proceedings of UKSim 2009: 11th International Conference on Computer Modelling and Simulation, Cambridge University, 25-27 March. ISBN:978-1-4244-3771-9.
- Ever, E., Gemikonakli, O., Chakka, R., (2006), “Stochastic Models for Highly Available Clusters with One Head and Several Identical Computing Nodes”, in Proceedings of the 9th International Conference on Computer Modelling and Simulation (UKSim 2006), Oriel College, Oxford, England, UK, 4-6 April 2006. ISBN:0-9516509-2-0/ 978-0-9516509-2-0.
- Ever, E., Gemikonakli, O., Chakka, R., (2006), “A Mathematical Model for Performability of Beowulf Clusters”, In IEEE Proceedings of 39th Annual Symposium on Network Simulation, Huntsville, U.S.A, 2-6 April 2006. ISBN:0-7695-2559-8.
